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✏️ Editing: DataArray.php

<?php
/**
 * Matomo - free/libre analytics platform
 *
 * @link https://matomo.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 *
 */
namespace Piwik;

use Exception;
use Piwik\Tracker\GoalManager;

/**
 * The DataArray is a data structure used to aggregate datasets,
 * ie. sum arrays made of rows made of columns,
 * data from the logs is stored in a DataArray before being converted in a DataTable
 *
 */

class DataArray
{
    protected $data = array();
    protected $dataTwoLevels = array();

public function __construct($data = array(), $dataArrayByLabel = array())
    {
        $this->data = $data;
        $this->dataTwoLevels = $dataArrayByLabel;
    }

/**
     * This returns the actual raw data array
     *
     * @return array
     */
    public function &getDataArray()
    {
        return $this->data;
    }

public function getDataArrayWithTwoLevels()
    {
        return $this->dataTwoLevels;
    }

public function sumMetricsVisits($label, $row)
    {
        if (!isset($this->data[$label])) {
            $this->data[$label] = static::makeEmptyRow();
        }
        $this->doSumVisitsMetrics($row, $this->data[$label]);
    }

/**
     * Returns an empty row containing default metrics
     *
     * @return array
     */
    public static function makeEmptyRow()
    {
        return array(Metrics::INDEX_NB_UNIQ_VISITORS    => 0,
                     Metrics::INDEX_NB_VISITS           => 0,
                     Metrics::INDEX_NB_ACTIONS          => 0,
                     Metrics::INDEX_NB_USERS            => 0,
                     Metrics::INDEX_MAX_ACTIONS         => 0,
                     Metrics::INDEX_SUM_VISIT_LENGTH    => 0,
                     Metrics::INDEX_BOUNCE_COUNT        => 0,
                     Metrics::INDEX_NB_VISITS_CONVERTED => 0,
        );
    }

/**
     * Adds the given row $newRowToAdd to the existing  $oldRowToUpdate passed by reference
     * The rows are php arrays Name => value
     *
     * @param array $newRowToAdd
     * @param array $oldRowToUpdate
     * @param bool $onlyMetricsAvailableInActionsTable
     *
     * @return void
     */
    protected function doSumVisitsMetrics($newRowToAdd, &$oldRowToUpdate)
    {
        // Pre 1.2 format: string indexed rows are returned from the DB
        // Left here for Backward compatibility with plugins doing custom SQL queries using these metrics as string
        if (!isset($newRowToAdd[Metrics::INDEX_NB_VISITS])) {
            $oldRowToUpdate[Metrics::INDEX_NB_VISITS] += $newRowToAdd['nb_visits'];
            $oldRowToUpdate[Metrics::INDEX_NB_ACTIONS] += $newRowToAdd['nb_actions'];
            $oldRowToUpdate[Metrics::INDEX_NB_UNIQ_VISITORS] += $newRowToAdd['nb_uniq_visitors'];
            $oldRowToUpdate[Metrics::INDEX_NB_USERS] += $newRowToAdd['nb_users'];
            $oldRowToUpdate[Metrics::INDEX_MAX_ACTIONS] = (float)max($newRowToAdd['max_actions'], $oldRowToUpdate[Metrics::INDEX_MAX_ACTIONS]);
            $oldRowToUpdate[Metrics::INDEX_SUM_VISIT_LENGTH] += $newRowToAdd['sum_visit_length'];
            $oldRowToUpdate[Metrics::INDEX_BOUNCE_COUNT] += $newRowToAdd['bounce_count'];
            $oldRowToUpdate[Metrics::INDEX_NB_VISITS_CONVERTED] += $newRowToAdd['nb_visits_converted'];
            return;
        }

// Edge case fail safe
        if (!isset($oldRowToUpdate[Metrics::INDEX_NB_VISITS])) {
            return;
        }

$oldRowToUpdate[Metrics::INDEX_NB_VISITS] += $newRowToAdd[Metrics::INDEX_NB_VISITS];
        $oldRowToUpdate[Metrics::INDEX_NB_ACTIONS] += $newRowToAdd[Metrics::INDEX_NB_ACTIONS];
        $oldRowToUpdate[Metrics::INDEX_NB_UNIQ_VISITORS] += $newRowToAdd[Metrics::INDEX_NB_UNIQ_VISITORS];

// In case the existing Row had no action metrics (eg. Custom Variable XYZ with "visit" scope)
        // but the new Row has action metrics (eg. same Custom Variable XYZ this time with a "page" scope)
        if (!isset($oldRowToUpdate[Metrics::INDEX_MAX_ACTIONS])) {
            $toZero = array(
                            Metrics::INDEX_NB_USERS,
                            Metrics::INDEX_MAX_ACTIONS,
                            Metrics::INDEX_SUM_VISIT_LENGTH,
                            Metrics::INDEX_BOUNCE_COUNT,
                            Metrics::INDEX_NB_VISITS_CONVERTED
            );
            foreach ($toZero as $metric) {
                $oldRowToUpdate[$metric] = 0;
            }
        }

$oldRowToUpdate[Metrics::INDEX_NB_USERS] += $newRowToAdd[Metrics::INDEX_NB_USERS];
        $oldRowToUpdate[Metrics::INDEX_MAX_ACTIONS] = (float)max($newRowToAdd[Metrics::INDEX_MAX_ACTIONS], $oldRowToUpdate[Metrics::INDEX_MAX_ACTIONS]);
        $oldRowToUpdate[Metrics::INDEX_SUM_VISIT_LENGTH] += $newRowToAdd[Metrics::INDEX_SUM_VISIT_LENGTH];
        $oldRowToUpdate[Metrics::INDEX_BOUNCE_COUNT] += $newRowToAdd[Metrics::INDEX_BOUNCE_COUNT];
        $oldRowToUpdate[Metrics::INDEX_NB_VISITS_CONVERTED] += $newRowToAdd[Metrics::INDEX_NB_VISITS_CONVERTED];
    }

// Edge case fail safe
        if (!isset($oldRowToUpdate[Metrics::INDEX_NB_VISITS])) {
            return;
        }

$oldRowToUpdate[Metrics::INDEX_NB_VISITS] += $newRowToAdd[Metrics::INDEX_NB_VISITS];
        if (array_key_exists(Metrics::INDEX_NB_ACTIONS, $newRowToAdd)) {
            $oldRowToUpdate[Metrics::INDEX_NB_ACTIONS] += $newRowToAdd[Metrics::INDEX_NB_ACTIONS];
        }
        if (array_key_exists(Metrics::INDEX_PAGE_NB_HITS, $newRowToAdd)) {
            if (!array_key_exists(Metrics::INDEX_PAGE_NB_HITS, $oldRowToUpdate)) {
                $oldRowToUpdate[Metrics::INDEX_PAGE_NB_HITS] = 0;
            }
            $oldRowToUpdate[Metrics::INDEX_PAGE_NB_HITS] += $newRowToAdd[Metrics::INDEX_PAGE_NB_HITS];
        }
        $oldRowToUpdate[Metrics::INDEX_NB_UNIQ_VISITORS] += $newRowToAdd[Metrics::INDEX_NB_UNIQ_VISITORS];
    }

public function sumMetricsGoals($label, $row)
    {
        $idGoal = $row['idgoal'];
        if (!isset($this->data[$label][Metrics::INDEX_GOALS][$idGoal])) {
            $this->data[$label][Metrics::INDEX_GOALS][$idGoal] = static::makeEmptyGoalRow($idGoal);
        }
        $this->doSumGoalsMetrics($row, $this->data[$label][Metrics::INDEX_GOALS][$idGoal]);
    }

/**
     * @param $idGoal
     * @return array
     */
    protected static function makeEmptyGoalRow($idGoal)
    {
        if ($idGoal > GoalManager::IDGOAL_ORDER) {
            return array(Metrics::INDEX_GOAL_NB_CONVERSIONS      => 0,
                         Metrics::INDEX_GOAL_NB_VISITS_CONVERTED => 0,
                         Metrics::INDEX_GOAL_REVENUE             => 0,
            );
        }
        if ($idGoal == GoalManager::IDGOAL_ORDER) {
            return array(Metrics::INDEX_GOAL_NB_CONVERSIONS             => 0,
                         Metrics::INDEX_GOAL_NB_VISITS_CONVERTED        => 0,
                         Metrics::INDEX_GOAL_REVENUE                    => 0,
                         Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_SUBTOTAL => 0,
                         Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_TAX      => 0,
                         Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_SHIPPING => 0,
                         Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_DISCOUNT => 0,
                         Metrics::INDEX_GOAL_ECOMMERCE_ITEMS            => 0,
            );
        }
        // idGoal == GoalManager::IDGOAL_CART
        return array(Metrics::INDEX_GOAL_NB_CONVERSIONS      => 0,
                     Metrics::INDEX_GOAL_NB_VISITS_CONVERTED => 0,
                     Metrics::INDEX_GOAL_REVENUE             => 0,
                     Metrics::INDEX_GOAL_ECOMMERCE_ITEMS     => 0,
        );
    }

/**
     *
     * @param $newRowToAdd
     * @param $oldRowToUpdate
     */
    protected function doSumGoalsMetrics($newRowToAdd, &$oldRowToUpdate)
    {
        $oldRowToUpdate[Metrics::INDEX_GOAL_NB_CONVERSIONS] += $newRowToAdd[Metrics::INDEX_GOAL_NB_CONVERSIONS];
        $oldRowToUpdate[Metrics::INDEX_GOAL_NB_VISITS_CONVERTED] += $newRowToAdd[Metrics::INDEX_GOAL_NB_VISITS_CONVERTED];
        $oldRowToUpdate[Metrics::INDEX_GOAL_REVENUE] += $newRowToAdd[Metrics::INDEX_GOAL_REVENUE];

// Cart & Order
        if (isset($oldRowToUpdate[Metrics::INDEX_GOAL_ECOMMERCE_ITEMS])) {
            $oldRowToUpdate[Metrics::INDEX_GOAL_ECOMMERCE_ITEMS] += $newRowToAdd[Metrics::INDEX_GOAL_ECOMMERCE_ITEMS];

// Order only
            if (isset($oldRowToUpdate[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_SUBTOTAL])) {
                $oldRowToUpdate[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_SUBTOTAL] += $newRowToAdd[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_SUBTOTAL];
                $oldRowToUpdate[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_TAX] += $newRowToAdd[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_TAX];
                $oldRowToUpdate[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_SHIPPING] += $newRowToAdd[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_SHIPPING];
                $oldRowToUpdate[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_DISCOUNT] += $newRowToAdd[Metrics::INDEX_GOAL_ECOMMERCE_REVENUE_DISCOUNT];
            }
        }
    }

public function sumMetricsActions($label, $row)
    {
        if (!isset($this->data[$label])) {
            $this->data[$label] = static::makeEmptyActionRow();
        }

$this->doSumActionsMetrics($row, $this->data[$label]);
    }

protected static function makeEmptyActionRow()
    {
        return array(
            Metrics::INDEX_NB_UNIQ_VISITORS => 0,
            Metrics::INDEX_NB_VISITS        => 0,
            Metrics::INDEX_NB_ACTIONS       => 0,
        );
    }

public function sumMetricsEvents($label, $row)
    {
        if (!isset($this->data[$label])) {
            $this->data[$label] = static::makeEmptyEventRow();
        }
        $this->doSumEventsMetrics($row, $this->data[$label], $onlyMetricsAvailableInActionsTable = true);
    }

protected static function makeEmptyEventRow()
    {
        return array(
            Metrics::INDEX_NB_UNIQ_VISITORS         => 0,
            Metrics::INDEX_NB_VISITS                => 0,
            Metrics::INDEX_EVENT_NB_HITS            => 0,
            Metrics::INDEX_EVENT_NB_HITS_WITH_VALUE => 0,
            Metrics::INDEX_EVENT_SUM_EVENT_VALUE    => 0,
            Metrics::INDEX_EVENT_MIN_EVENT_VALUE    => false,
            Metrics::INDEX_EVENT_MAX_EVENT_VALUE    => 0,
        );
    }

const EVENT_VALUE_PRECISION = 2;

/**
     * @param array $newRowToAdd
     * @param array $oldRowToUpdate
     * @return void
     */
    protected function doSumEventsMetrics($newRowToAdd, &$oldRowToUpdate)
    {
        $oldRowToUpdate[Metrics::INDEX_NB_VISITS] += $newRowToAdd[Metrics::INDEX_NB_VISITS];
        $oldRowToUpdate[Metrics::INDEX_NB_UNIQ_VISITORS] += $newRowToAdd[Metrics::INDEX_NB_UNIQ_VISITORS];
        $oldRowToUpdate[Metrics::INDEX_EVENT_NB_HITS] += $newRowToAdd[Metrics::INDEX_EVENT_NB_HITS];
        $oldRowToUpdate[Metrics::INDEX_EVENT_NB_HITS_WITH_VALUE] += $newRowToAdd[Metrics::INDEX_EVENT_NB_HITS_WITH_VALUE];

$newRowToAdd[Metrics::INDEX_EVENT_SUM_EVENT_VALUE] = round($newRowToAdd[Metrics::INDEX_EVENT_SUM_EVENT_VALUE], static::EVENT_VALUE_PRECISION);
        $oldRowToUpdate[Metrics::INDEX_EVENT_SUM_EVENT_VALUE] += $newRowToAdd[Metrics::INDEX_EVENT_SUM_EVENT_VALUE];
        $oldRowToUpdate[Metrics::INDEX_EVENT_MAX_EVENT_VALUE] = round(max(0, $newRowToAdd[Metrics::INDEX_EVENT_MAX_EVENT_VALUE], $oldRowToUpdate[Metrics::INDEX_EVENT_MAX_EVENT_VALUE]), static::EVENT_VALUE_PRECISION);

// Update minimum only if it is set
        if ($newRowToAdd[Metrics::INDEX_EVENT_MIN_EVENT_VALUE] !== false && $newRowToAdd[Metrics::INDEX_EVENT_MIN_EVENT_VALUE] !== null) {
            if ($oldRowToUpdate[Metrics::INDEX_EVENT_MIN_EVENT_VALUE] === false) {
                $oldRowToUpdate[Metrics::INDEX_EVENT_MIN_EVENT_VALUE] = round($newRowToAdd[Metrics::INDEX_EVENT_MIN_EVENT_VALUE], static::EVENT_VALUE_PRECISION);
            } else {
                $oldRowToUpdate[Metrics::INDEX_EVENT_MIN_EVENT_VALUE] = round(min($newRowToAdd[Metrics::INDEX_EVENT_MIN_EVENT_VALUE], $oldRowToUpdate[Metrics::INDEX_EVENT_MIN_EVENT_VALUE]), static::EVENT_VALUE_PRECISION);
            }
        }
    }

/**
     * Generic function that will sum all columns of the given row, at the specified label's row.
     *
     * @param $label
     * @param $row
     * @throws Exception if the the data row contains non numeric values
     */
    public function sumMetrics($label, $row)
    {
        foreach ($row as $columnName => $columnValue) {
            if (empty($columnValue)) {
                continue;
            }
            if (empty($this->data[$label][$columnName])) {
                $this->data[$label][$columnName] = 0;
            }
            if (!is_numeric($columnValue)) {
                throw new Exception("DataArray->sumMetricsPivot expects rows of numeric values, non numeric found: " . var_export($columnValue, true) . " for column $columnName");
            }
            $this->data[$label][$columnName] += $columnValue;
        }
    }

public function sumMetricsVisitsPivot($parentLabel, $label, $row)
    {
        if (!isset($this->dataTwoLevels[$parentLabel][$label])) {
            $this->dataTwoLevels[$parentLabel][$label] = static::makeEmptyRow();
        }
        $this->doSumVisitsMetrics($row, $this->dataTwoLevels[$parentLabel][$label]);
    }

public function sumMetricsGoalsPivot($parentLabel, $label, $row)
    {
        $idGoal = $row['idgoal'];
        if (!isset($this->dataTwoLevels[$parentLabel][$label][Metrics::INDEX_GOALS][$idGoal])) {
            $this->dataTwoLevels[$parentLabel][$label][Metrics::INDEX_GOALS][$idGoal] = static::makeEmptyGoalRow($idGoal);
        }
        $this->doSumGoalsMetrics($row, $this->dataTwoLevels[$parentLabel][$label][Metrics::INDEX_GOALS][$idGoal]);
    }

public function sumMetricsActionsPivot($parentLabel, $label, $row)
    {
        if (!isset($this->dataTwoLevels[$parentLabel][$label])) {
            $this->dataTwoLevels[$parentLabel][$label] = $this->makeEmptyActionRow();
        }
        $this->doSumActionsMetrics($row, $this->dataTwoLevels[$parentLabel][$label]);
    }

public function sumMetricsEventsPivot($parentLabel, $label, $row)
    {
        if (!isset($this->dataTwoLevels[$parentLabel][$label])) {
            $this->dataTwoLevels[$parentLabel][$label] = $this->makeEmptyEventRow();
        }
        $this->doSumEventsMetrics($row, $this->dataTwoLevels[$parentLabel][$label]);
    }

public function setRowColumnPivot($parentLabel, $label, $column, $value)
    {
        $this->dataTwoLevels[$parentLabel][$label][$column] = $value;
    }

public function enrichMetricsWithConversions()
    {
        $this->enrichWithConversions($this->data);

foreach ($this->dataTwoLevels as &$metricsBySubLabel) {
            $this->enrichWithConversions($metricsBySubLabel);
        }
    }

/**
     * Given an array of stats, it will process the sum of goal conversions
     * and sum of revenue and add it in the stats array in two new fields.
     *
     * @param array $data Passed by reference, two new columns
     *              will be added: total conversions, and total revenue, for all goals for this label/row
     */
    protected function enrichWithConversions(&$data)
    {
        foreach ($data as &$values) {
            if (!isset($values[Metrics::INDEX_GOALS])) {
                continue;
            }

$revenue = $conversions = 0;
            foreach ($values[Metrics::INDEX_GOALS] as $idgoal => $goalValues) {
                // Do not sum Cart revenue since it is a lost revenue
                if ($idgoal >= GoalManager::IDGOAL_ORDER) {
                    $revenue += $goalValues[Metrics::INDEX_GOAL_REVENUE];
                    $conversions += $goalValues[Metrics::INDEX_GOAL_NB_CONVERSIONS];
                }
            }
            $values[Metrics::INDEX_NB_CONVERSIONS] = $conversions;

// 25.00 recorded as 25
            if (round($revenue) == $revenue) {
                $revenue = round($revenue);
            }
            $values[Metrics::INDEX_REVENUE] = $revenue;

// if there are no "visit" column, we force one to prevent future complications
            // eg. This helps the setDefaultColumnsToDisplay() call
            if (!isset($values[Metrics::INDEX_NB_VISITS])) {
                $values[Metrics::INDEX_NB_VISITS] = 0;
            }
        }
    }

/**
     * Returns true if the row looks like an Action metrics row
     *
     * @param $row
     * @return bool
     */
    public static function isRowActions($row)
    {
        return (count($row) == count(static::makeEmptyActionRow())) && isset($row[Metrics::INDEX_NB_ACTIONS]);
    }

/**
     * Converts array to a datatable
     *
     * @return \Piwik\DataTable
     */
    public function asDataTable()
    {
        $dataArray = $this->getDataArray();
        $dataArrayTwoLevels = $this->getDataArrayWithTwoLevels();

$subtableByLabel = null;
        if (!empty($dataArrayTwoLevels)) {
            $subtableByLabel = array();
            foreach ($dataArrayTwoLevels as $label => $subTable) {
                $subtableByLabel[$label] = DataTable::makeFromIndexedArray($subTable);
            }
        }
        return DataTable::makeFromIndexedArray($dataArray, $subtableByLabel);
    }
}

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